387243 has 12 divisors (see below), whose sum is σ = 592488. Its totient is φ = 242880.

The previous prime is 387227. The next prime is 387253. The reversal of 387243 is 342783.

It is not a de Polignac number, because 387243 - 2⁴ = 387227 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 8⁵ + 2⁷ + 7² + 4 + 3¹¹ .

It is not an unprimeable number, because it can be changed into a prime (387203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1113 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (49374).

2³⁸⁷²⁴³ is an apocalyptic number.

387243 is a deficient number, since it is larger than the sum of its proper divisors (205245).

387243 is a wasteful number, since it uses less digits than its factorization.

387243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554 (or 2551 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 387243 is about 622.2885182936. The cubic root of 387243 is about 72.8888657373. Note that the first 4 decimals are identical.

It can be divided in two parts, 387 and 243, that added together give a triangular number (630 = T₃₅).

The spelling of 387243 in words is "three hundred eighty-seven thousand, two hundred forty-three".